Croatia's Hideout Festival is an electronic music festival at Zrce Beach ... an ideal setting for a great time in the European Summer. It happens on the Isle of Pag, and festival organizers have promised the biggest and best festival and events yet. The official Hideout Festival 2015 dates are June 28 - July 2. The Hideout 2015 festival lineup and Hideout Festival 2015 tickets are below.